一个全面的等位基因特异表达资源,用于马类转录组
Harrison D Heath1, Sichong Peng1,2, Tomasz Szmatola1,3
1Department of Population Health and Reproduction, Davis School of Veterinary Medicine, University of California, Room 4206 Vet Med3A One Shields Ave, Davis, CA, 95616, USA.
BMC genomics
|January 30, 2025
概括
基因特异性表达 (ASE) 分析揭示了马基因组中的调控变异. 这项研究确定了显著的ASE事件,特别是在肝脏组织中,为马类基因调节提供了洞察力.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 动物科学动物科学
背景情况:
- 基因特异性表达 (ASE) 分析为控制基因表达的 cis 调节机制提供了详细的见解.
- 了解ASE对于破译基因调节复杂性至关重要.
研究的目的:
- 在马体组织中进行全面的等位基特异性表达分析.
- 为了识别和描述马匹的等位基因表达事件.
- 为了研究基因失衡的组织特异性模式.
主要方法:
- 综合分析Iso-seq和短读RNA测序数据从四个纯血统马跨越九个组织.
- 使用从长期读取的测序数据中得出的单元类型来量化等位基表达.
- 在较大的马肝样本队列中验证已识别的等位基因特异性变异.
主要成果:
- 对42,900个等位基因表达事件的比较揭示了635个 (1.48%) 的ASE病例.
- 肝脏组织表现出最高比例的ASE事件.
- 与ASE相关的遗传变异经常位于基因组修饰区域内 (64.2%).
- 验证证实了在97%的测试过的等位基因特定变异中出现了ASE.
结论:
- 这项研究为马类基因调节研究产生了有价值的,公开可访问的资源.
- 结果强调了马体基因组中标基因失衡的显著组织特异性.
- 这项工作有助于未来对马体组织内的调控变异进行调查.
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